This morning i made 2 shots to check it - i thought the shot was still kinda sour but the bitter edge is gone ..... turned off the machineThis evening turned it on again, let it warm up, opened up steam wand. measured 18-19 psi.

Prepared to make a shot and started flushing routine - i was getting major water dance out the brew head, eventually it was just steam then it would be a smooth stream of water, then steam, then gurgling water, then steam etc.....

What's going on? is the boiler temp adjusted too high? is my vibe pump shot? the pump is making a different noise - not as loud as before. It seems that the water is not coming out as much - so I checked with my DIY brew press gauge and it still reads >130 psi eventually.

sounds like the vibe pump to me.. no reason steam would come out unless there was so little water that the water woudl flash heat to steam in the HX tube (if you can get what i mean by that).. Make sure your pump is not leaking anywhere.. also turn your machine on from cold and see if you can pump out water..

I posted this in a thread about my new NS Oscar but I thought i'd start a separate thread on this as it may be generic to more than just Oscar's.

Prepared to make a shot and started flushing routine - i was getting major water dance out the brew head, eventually it was just steam then it would be a smooth stream of water, then steam, then gurgling water, then steam etc.....

What's going on? is the boiler temp adjusted too high? is my vibe pump shot? the pump is making a different noise - not as loud as before. It seems that the water is not coming out as much - so I checked with my DIY brew press gauge and it still reads >130 psi eventually.

which is why i thought that maybe i had adusted the temp/pressure too high. but i don't think that's the case since the pressure out of the steam wand was less than 20 psig. although... i was using a 0-160 psig tire gauge so maybe at that low pressures the gauge is inaccurate

Make sure your pump is not leaking anywhere..

i don't see any leaks, at least not on the counter

also turn your machine on from cold and see if you can pump out water..

did that also, let the machine cool off and turned it on before it reheated. hardly any water came out - i was getting water, then hissing w/o water, then water, etc....

i was thinking i had to 'reprime' so i went ahead and turned off the machine, let it cool down, turned it back on, open the steam wand (obviously no steam at this point) and hit the brew button. same thing: water, hissing, water, hissing, etc...

I'll have to check again. I'd expect to see a puddle under the machine if this was the case - and I do recall having to wipe the counter down a bit after all the adjusting I did. I attributed it to a leak on the OPV valve after I adjusted it (see my post: leak after OPV adjustment ) maybe one of the lines worked loose.

on the NS Oscar where is the vibe pump? I can't seem to locate it after pulling the top.

i'm already getting caffeine espresso withdrawal just thinking that i can't make any espresso shots .....

I think this is really a matter of personal preference. On my Anita I run with a stagnate pressure of 7.75 bar on my dial. The espresso is damn good. Adjust the pressure until the espresso tastes good, I wouldn't put too much stock in dials and numbers.

On my Anita I run with a stagnate pressure of 7.75 bar on my dial. The espresso is damn good.

Ok, that'd be approx 6.75 bar/99psi then. Conventional wisdom says brew pressure should be 9 bar/132psi, but hey., if it work for you that's great!

Adjust the pressure until the espresso tastes good, I wouldn't put too much stock in dials and numbers.

Hmmm.., well the manufacturer does put them there for a good reason.. & it's good to adjust & have control of the variables when using different espresso blends.I can think of 2 different blends I use with completely different brewing parameters!

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